Yarn-spinning apparatus.



no. 665,l59. Patented Jan. I, 19m] -w. E. ALLEN.

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UNITED STATES PATENT OEEIcE.

WILLIAM E. ALLEN, OF SALEM, MASSACHUSETTS, ASSIGNOR TO THE DRAPER COMPANY, OF PORTLAND, MAINE, AND HOPEDALE, MASSACHUSETTS.

YARN-SPINNING APPARATUS.

SPECIFICATION forming part of Letters Patent N 0. 665,1 59, dated January 1, 190 1. Application filed October 28, 1899- Serial No. 735,016 (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM E'. ALLEN, a citizen of the United States, residingat Salem, county of Essex, State of Massachusetts, have invented an Improvement in Yarn-Spinning Apparatus, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object the improvement of yarn spinning or twisting apparatus, whereby the production may be increased and certain objectionable features of construction obviated.

In ring spinning or twisting machines the increase of speed of spindle rotation beyond certain limits has been attended with failure heretofore, owing to the rapid heating of the traveler or drag, due to frictional contact with its annular support. Obviously increased spindle speed means increased production, other things being equal; but if the yarn -controlling means cannot keep pace with the spindle speed increase of the latter has no practical value, and increased production must be effected in some other manner.

In my present invention I attain the desired drag upon the yarn by means of cooperating fixed and movable annular members through which the spindle extends, the yarn passing between said members to the spindle and being retarded by frictional'contact therewith. The fixed member forms a support or holder for the other member, its inner surface being made conical and downwardly convergent, supporting the revoluble and free member when the latter is at rest. As the speed of rotation of the apparatus becomes greater the tendency of the yarn to lift the ring from its support increases, so that the latter will revolve with less and less friction on its support, the latter then serving merely to limit the radial movement of the ring and to cenfor it relatively to the spindle.

Figure 1 is a view partially in elevation and partially in vertical section of a yarn-spinning apparatus embodying one form of my invention, and Fig. 2 is a top or plan view of the fixed or supporting member shown in Fig. l.

The well-known parts of a spinning apparatus shown in Fig. lsuch as the spindle rail R, ring-rail R spindle S, having the usual whirl W, and the yarn-carrier O-may be of any usual or well-known construction, the yarn y passing through the usual guides or pigtails (not shown) on its way to the spindle.

I have herein shown the yarn drag or tension controller as comprising cooperating 6o loose and fixed annular members I) and c, the ring b being herein represented as circular in cross-section and of sufficient weight to exert. the proper or desired pull on the yarn. The codperating member or support 0 is shown as comprising an annular body portion having an internally-conical and downwardly-converging surface c and a laterally-extended flange or lip c at its base to rest upon the ring-rail and secured thereto in any suitable 7o manner, as by the headed screws 8 passing through slots 0 in the flange.

Referring to Fig. 1, it will be seen that the support 0 is secured to the rail concentric. with the spindle-opening R therein and that the ring I) islargerin diameter externally than the bottom opening of the member 0, so that the ring when at rest is supported by the said member 0, the contact between the two being tangential. The yarn passes between the ring and the conical surface of its support, as shown in Fig. 1, in frictional engagement therewith, and as the speed of rotation of the spindle increases the rapidity of travel of the yarn around the ring will rotate the latter, lift- 8 5 ing it also more or less from its conical seat, so that the contact between the ring and the support apparently is reduced to zero, the ring being held suspended by the yarn and revolving in the air.

The conical surface of the support serves to limit the radial movement of the ring and also to center, the same relative to the spindle when necessary.

By making the supporting-surface conical it is at all times substantially tangential to the ring, and rings of different diameters can be used with one and the same support. By using the conical surface the ring will not settle down into a seat, as it were, but is always lightly yet freely supported.

It is extremely convenient to be able to use rings of different diameters in one and the same holder, as thereby the device is adapted to use in spinning different sizes of yarns, and it is only necessary to substitute one ring for another without at all disturbing the supports or ring-holders.

Inasmuch as the ring-support is open and unobstructed at its lower end or bottom, a free passage is presented for the escape of lint, dust, or other similar obstructing matter, the same sliding or falling down over the smooth coniealsurface of the support and being discharged at the bottom, so that there can be no obstruction to the free action of the ring on the support.

Having described myinvention, what I claim, and desire to secure by Letters Patent,

1. In apparatus of the class described, a fixed member having an internally-conical surface and open and unobstructed at its lower end or bottom, a loose ring supported by said surface when at rest, said member and ring surrounding the spindle and forming a drag for the yarn passed between them.

2. In apparatus of the class described, a freely-movable ring surrounding the spindle, and a fixed guard-support therefor, having a conical, downwardly-inclined internal bearing-surface upon which the ring is supported when at rest, the ring being circular in crosssection, the yarn passing between the ring and its support, the latter being, open and unobstructed at its lower end or bottom.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

'WILLIAM E. ALLEN.

Witnesses:

J 01m (3. EDWARDS, AUGUSTA E. DEAN. 

